Gli vs Loro: The 3rd Person Plural Indirect

If you have ever wondered why some Italian textbooks tell you to say Ho detto loro la verità while every Italian you actually meet says Gli ho detto la verità, you have stumbled onto the most visible point of usage tension in the modern language. The third-person plural indirect — "to them" — is in the middle of a long, slow shift that pits prescriptive tradition against the everyday speech of nearly every Italian speaker alive. As a learner you need to know both forms, what each one signals, and when to use which.

The short version, before we go in: in twenty-first-century Italian, gli is the everyday form for "to them," used by educated speakers in conversation, journalism, fiction, emails, and most published prose. Loro still appears, but it has retreated to formal writing, certain literary registers, and the speech of speakers who prefer a polished, traditional style. Both are correct. The choice is one of register, not of grammar.

The two patterns

The two forms differ in two ways at once: the actual word used, and where it goes in the sentence.

This is the heart of it. Loro is not a clitic — it never attaches to the verb, never sits before it, and never participates in combined clitic forms. It always lives as a free word after the verb, like an English prepositional phrase. Gli, by contrast, behaves exactly like the rest of the clitic series (mi, ti, le, ci, vi): it sits before the conjugated verb, attaches to infinitives, gerunds, and imperatives, and combines with direct-object clitics into the merged form glielo / gliela / glieli / gliele / gliene.

Side-by-side: how the same idea looks in each register

Once you see the same sentence in both forms, the register difference becomes intuitive. The modern form sounds like everyday speech; the traditional form sounds like a press release or a 1950s novel.

What the major reference works actually say

Italian usage debates are rarely resolved by single individuals; the real battleground is the major reference works. Here is where the relevant authorities sit:

• Treccani (the most consulted Italian dictionary and language portal) explicitly notes that gli for "to them" is now standard in modern Italian. Their entries on gli and on loro document the shift without condemnation.
• The Accademia della Crusca, the conservative arbiter of correct Italian, has for decades published consultations acknowledging the spread of gli. Their position has softened from "use loro" to "loro is preferred in formal writing; gli is acceptable in standard usage."
• Sabatini-Coletti (a major Italian dictionary) labels gli = a loro as standard and current, no longer a colloquialism.
• More traditional grammar manuals — Serianni's Grammatica italiana, parts of the Renzi-Salvi-Cardinaletti Grande grammatica italiana di consultazione — still prescribe loro as the more correct form, though they also document the spread of gli.

So the picture is this: there is no major contemporary authority that calls gli for "to them" wrong. There are authorities that call loro more elegant. The two forms coexist; the choice is one of style.

Why the shift happened: three forces

Language change is rarely random. The spread of gli has at least three obvious drivers, and understanding them helps you predict similar shifts elsewhere.

Force 1: position economy. Italian's preferred clitic position is before the conjugated verb: Mi vede, ti chiamo, lo so, le scrivo. Every other indirect clitic in the system sits there. Loro was the lone holdout, sitting awkwardly after the verb — and after the past participle in compound tenses (Ho detto loro), which is even more disruptive. By replacing loro with gli, speakers regularised the system: now every indirect clitic behaves the same way.

Force 2: regularisation by analogy. Once gli had taken over the masculine plural indirect role (which happened centuries ago in some regional varieties), it was natural to extend it to feminine plural too. Why have a separate post-verbal form for one person/number combination when every other slot in the table is filled with a pre-verbal clitic? Languages tend to flatten irregularities of this kind given enough time.

Force 3: the existing genderlessness of "glielo." Here is the most interesting force, and it is often overlooked. In combined clitics, the merged form glielo (and its variants gliela, glieli, gliele, gliene) has been the standard for both "to him/her" and "to them" in formal Italian for centuries. There is no way to say "I tell it to them" using loro in a combined form — dico lo loro doesn't exist; glielo dico covers all of "to him," "to her," and "to them" in one word. So combined-clitic Italian was already gender-and-number-neutral at this position. Speakers extended that neutralisation backwards into the simple clitic, and gli = a loro became natural.

If the merged form is already number-neutral, why would the simple form not be? The system pushed itself toward consistency, and gli won.

A broader Romance trend

Italian is not the only Romance language pushing in this direction. Spanish has used clitic les ("to them") in pre-verbal position for centuries — Les digo la verdad — without any post-verbal alternative. French has clitic leur ("to them") doing the same job — Je leur dis la vérité. In both languages, "to them" is structurally identical to "to him/her/me/us" — a regular pre-verbal clitic. Italian's traditional split between gli/le (clitic) and loro (non-clitic) was the odd one out among major Romance languages, and the modern shift toward gli = a loro brings Italian into line with its neighbours.

This kind of broader-Romance convergence is a real force in language change. Italian speakers don't think "I should sound more like Spanish" — but the same underlying systemic pressures (regularity, position economy, type frequency of pre-verbal clitics) push Romance languages in the same direction.

When to use loro deliberately

If gli is the everyday default, when is loro still alive? A few specific contexts:

• Formal correspondence and bureaucracy: La invito a comunicare loro la decisione ("I invite you to communicate the decision to them"). Polished, slightly elevated.
• Legal and administrative writing: contracts, court rulings, official letters — these genres preserve traditional forms long after speech has moved on.
• Literary prose with a conscious style: a novelist who wants a 1950s-Pavese flavour will reach for loro.
• When you want disambiguation in writing: in a sentence where gli could refer back to a specific masculine antecedent, switching to loro can clarify that you mean the plural group. (In speech, intonation does this work.)
• Old set phrases: a few fossilised expressions still favour loro even in modern speech — though they are rare.

The verb-second compromise: "a loro"

There is a third option that sidesteps the whole debate: use the stressed form a loro rather than either clitic. This is fully neutral in register and works in any context.

The stressed form is also what you reach for when you need emphasis or contrast — A loro non interessa, a noi sì ("They don't care, but we do"). It cannot replace the clitic in every position (Vorrei dire loro che sounds odd next to Vorrei dirgli che), but as an emphatic option it is always available and never sounds wrong in any register.

What this means for you as a learner

Three pieces of practical advice:

1. Produce gli without hesitation. It is the modern, natural form. In conversation, in everyday writing, in informal emails, in articles, in posts, in fiction — gli is correct. You will sound natural.

2. Recognise loro when reading. You will encounter Ho detto loro, Sembra loro, Manderò loro in newspapers, novels, and formal correspondence. Read it as "to them" without flinching — it is not a mistake, just a different register.

3. Use loro deliberately if and when you want a formal flavour. A CV cover letter or a complaint to a public authority is a fair place. Day-to-day chat is not.

Common mistakes

Key takeaways

1. In modern Italian, gli is the everyday form for "to them" — used in speech, journalism, fiction, and informal writing without any sense of error. Treccani, Sabatini-Coletti, and the Crusca all recognise this.

2. Loro is the older, formal alternative, used in legal writing, corporate correspondence, and literary prose. It is never a clitic: it always sits after the verb and never attaches to anything.

3. The two forms differ on three axes: word (gli vs loro), position (pre-verbal vs post-verbal), and register (everyday vs formal).

4. Combined clitics use glie- regardless — glielo dico covers "to him," "to her," and "to them." There is no loro-based combined form. This pre-existing neutralisation helped pull simple gli toward covering "to them" too.

5. The stressed form "a loro" is a register-neutral fallback, and the right choice when you need emphasis or contrast: A loro non importa.

For the placement rules that distinguish gli (clitic) from loro (free post-verbal word), see Indirect Object Placement. For the related debate about gli spreading into "to her" territory in colloquial speech, see Gli for "to her".